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### Contents

Introduction | 1 |

CIE Standard Sources Chromaticity Coordinates of 520 | 11 |

Distribution of 520 | 30 |

Copyright | |

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### Common terms and phrases

amplitude angle aperture applied approximation atoms band called cathode cathodoluminescence cavity chromaticity coherence color components constant coordinates corresponding curvature defined density deviation diameter diffraction distance distribution effects efficiency electroluminescence electron emission emittance energy levels entrance pupil equal equations excitation exit pupil factor filament flux focal length Fourier transform frequency Gaussian glass illumination illustrated in Figure incident integral intensity inversion lamps laser lens lenses light source limit luminance luminescence mirror modes modulation modulation transfer function monochromatic noise normal numerical aperture object point obtained optical axis output parallel phase phosphor photons point spread function polarized population inversion prism pulse radiation radius ray optical reflection reflectors refractive index region relative result rotation screen Section shown in Figure signal spectral spectrum spherical aberration spread function surface Table temperature transfer function transition tristimulus tube valence band vector velocity voltage wave wavefront wavelength width